Hi
Thanks for the kind words about the documentation. We're actually knee deep in trying to get more complete documentation and help guides in place. If you saw anythng confusing, email me at tim[at] wordfence.com with a link and what you found difficule to follow. I'd love to hear it. Use a subject line that says "Documentation Project"
As for your question, I'm betting the link-library plugin is affecting the stylesheet of every page, including the admin ones. I'll be installing this later today to watch the logs. Can you verify the version number for it and wordfence?
Thanks
tim